<template>
  <div class="login_container">
    <div class="login_box">
      <div class="avatar_box">
        <img src="../assets/logo.png" alt="">
      </div>
      <el-form label-width="0px" class="login_form" :model="loginForm" :rules="loginFormRules" ref="loginFormRef">
        <!--用户名-->
        <el-form-item prop="username">
          <el-input prefix-icon="iconfont icon-users" v-model="loginForm.username"></el-input>
        </el-form-item>
        <!--密码-->
        <el-form-item prop="password">
          <el-input prefix-icon="iconfont icon-3702mima" v-model="loginForm.password" type="password"></el-input>
        </el-form-item>
        <!--按钮-->
        <el-form-item class="btns">
          <el-button type="primary" @click="login">登录</el-button>
          <el-button type="info" @click="resetLoginForm">重置</el-button>
        </el-form-item>
      </el-form>
    </div>
  </div>
</template>

<script>

export default {
  name: "Login",
  data() {
    return {
      // 登录表达数据绑定
      loginForm: {
        username: 'admin',
        password: '123456',
      },
      loginFormRules: {
        username: [
          { required: true, message: '请输入用用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入用户密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ]
      }
    }
  },
  methods: {
    resetLoginForm() {
      console.log(this)
      this.$refs.loginFormRef.resetFields()
    },
    login() {
      this.$refs.loginFormRef.validate(async valid => {
        // console.log(valid);
        if(!valid) return;
        const {data: res} = await this.$http.post("login" , this.loginForm);
        console.log(res);
        if(res.meta.status !== 200) return this.$message.error('登录失败')
        this.$message.success('登录成功');
        // 将成功登录的token保存到客户端的sessionStorage
        window.sessionStorage.setItem("token" , res.data.token);
        this.$router.push('/home')
      })
    }
  }
}
</script>

<style scoped lang="less">
  .login_container {
    background-color: #2b4b6b;
    height: 100%;
  }

  .login_box {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50% , -50%);
    width: 450px;
    height: 300px;
    background-color: #fff;
    border-radius: 3px;
  }
  .avatar_box {
    position: absolute;
    left: 50%;
    transform: translate(-50% , -50%);
    height: 130px;
    width: 130px;
    border: 1px solid #ccc;
    border-radius: 50%;
    padding: 10px;
    box-shadow: 0 0 10px #ddd;
    background-color: #fff;

    img {
      width: 100%;
      height: 100%;
      border-radius: 50%;
      background-color: #eee;
    }
  }

  .btns {
    display: flex;
    justify-content: flex-end;
  }

  .login_form {
    position: absolute;
    bottom: 0;
    width: 100%;
    padding: 10px;
    box-sizing: border-box;
  }
</style>